No power going to six fuses?

2004 CHEVROLET IMPALA

217,000 MILES • 3.8L • V6 • 2WD • AUTOMATIC

NATEDICE

MEMBER
1 POST
FOLLOW

For some reason I have no power going to 6 of my fuses. the bottom 6 on the cover of the fuse box starting with fuel injection and ending with oxygen sensor. All 6 fuses are good. I have power coming from the battery into the fuse box. The rest of the fuses in the box all have power. What threw me for a loop is that one fuse that has no power is ENG Comp which is supposed to supply power for various things such as the MAF sensor. Pulling the connector from the MAF sensor and I tested it for power which it has??? Help

Image (Click to enlarge)

Aug 23, 2019 at 2:19 PM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.

SCGRANTURISMO

AUTOMOTIVE REPAIR CONTRIBUTOR
4,897 POSTS

Hello,

It sounds like you have a bad connection to the bus bar in the fuse box. In the diagrams down below I have included the Power Distribution wiring diagrams for your car as well the instructions for the removal and installation of the fuse box in question. Please go through these guides and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros

Images (Click to enlarge)

Aug 23, 2019 at 5:31 PM